protected void Page_Load(object sender, EventArgs e)
 {
     CarryWorkCalculate crt = new CarryWorkCalculate(HttpContext.Current.User.Identity.Name);
     // Teaching Undirect
     GridView1.DataSource = crt.Teaching_UnDirect_Main().ToList();
     GridView1.DataBind();
     Label1.Text = crt.SumOfTeachingUnDirect_Main().ToString();
 }